The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2017
Filed:
Jul. 09, 2015
Mitutoyo Corporation, Kanagawa-ken, JP;
Yong Xie, Redmond, WA (US);
Mituloyo Corporation, Kanagawa-ken, JP;
Abstract
A chromatic confocal range sensor optical pen comprises a housing, an in/out optical fiber, a chromatically dispersive lens configuration, a reflected light dividing configuration comprising a lower NA zone and a higher NA zone, and a camera portion. The lens configuration is configured to receive source light from the optical fiber and output focused source light to a workpiece surface with axial chromatic dispersion, and receive reflected light from the workpiece surface and focus at least a portion of the reflected light to the fiber aperture. The reflected light dividing configuration is arranged to divide the reflected light into a measurement portion and an imaging portion. In some embodiments, the lower NA zone directs the imaging portion along an imaging optical path to the image detector, and the higher NA zone directs the measurement portion along a measurement optical path to a point proximate to the fiber aperture.